We did it in 2 days, 53km (we went the wrong way for 5km ). Very nice hike but not that easy as we did a lot of km each day. Views on the 7 summits are breathtaking. Don’t worry for the water, there’s a lot of place to refill all the way to Galehead Shelter. Make sure to have enough water at this point because the next water supply is on the way down. So you must have at least 2L from galehead to the end of the hike ( if you do it in 2 days ). Many campsite are available all the way. Make sure to not have to much weight in your backpack and hike sticks. For the rest, you must be in shape to do this trail. Definitely recommend.